新型悬吊式TMD及其在某标志塔风振控制中的应用

A new type pendulous TMD and its application on a tower for wind-induced vibration control

为了控制河南艺术中心标志塔的风致振动,提出了一种采用十字形万向铰轴实现多向振动控制、采用摩擦阻尼片提供附加阻尼、采用放射型弹簧提供附加刚度的新型悬吊式TMD。根据标志塔结构的动力特性,设计加工了足尺TMD,通过实验室试验对其动力性能进行了测试,并将该TMD安装在实际结构上,依据实测频率和阻尼对其参数进行了现场调整。研究表明,该TMD装置具有构造简单,稳定性和持久性好等优点。

A new type of pendulous tuned mass damper （TMD） with universal hinge, friction damping sheets and additional preloaded spring was presented to control the wind-induced vibration of a tower at the Henan Art Centre. A prototype TMD was designed and manufactured according to the dynamic parameters of the tower. Several tests were performed in laboratory to verify the dynamic performance. The TMD was then installed on the tower and the mechanical parameters were adjusted according to the on-site measured dynamic parameters of the tower. The studies indicate that the construction of the TMD is simple with strong stability and durability.